quadcopter moves up and down at a constant throttle

Hey guys,

I finally managed to fly my quad pretty stable when hovering after a long patience. It flies for about 10-12min with a 3300mah 4s 25C battery.

I am running Arducopter 3.0.1 rc7. when I tried to run for the first time, the compass which was working before did not work! it did not let me arm because of fail in pre-arm checks due to this compass sensor.

it shows that compass(internal) is bad( which before was not and also I didn't crash!).

so what I did was, I turned off the pre-arm checks and the compass and magnetometer. I am not using gps ( its just installed on the quad). I always fly in stab mode and I didn't try any other.

So the question begins with-

1) why is the internal compass not being detected?

2) what tuning parameter should I change to keep it on a certain level at a particular throttle value?

- when I fly it goes up, then after3-4 seconds keep descending itself.

3) compass and magnetometer are not required in stabilize mode, right?

Thanks,

Rahul

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • is the placing of GPS incorrect or something else?

    GPS is placed over the APM 2.5 on a carbonfiber plate , and ofcourse its insulated properly so as to prevent short circuiting.

This reply was deleted.

Activity

DIY Drones via Twitter
RT @chr1sa: After more than a year of only virtual races, @DIYRobocars returns to the newly renovated @circuitlaunch on May 22 for the resu…
Sunday
DIY Robocars via Twitter
RT @DAVGtech: And now available with LiDAR 🔥 https://twitter.com/Heavy02011/status/1381137016381964293
Sunday
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #9 - #ParkingLotNerds #thunderhillracetrack, CA Join us for the next race April 24th,…
Sunday
DIY Robocars via Twitter
RT @DWalmroth: Weather's finally cooperating, looking forward to racing 1:10 scale autonomous cars outdoors again! @diyrobocars, @NVIDIAEm…
Apr 7
DIY Robocars via Twitter
RT @AIDRI_: I finally succeeded in optimizing the trajectory and speed of a car on a #racetrack. Next step: implement a 2d controller and…
Apr 7
DIY Robocars via Twitter
@jetdillo @circuitlaunch Actually the second *in person* event in a year. We do virtual races every month
Apr 2
DIY Robocars via Twitter
Update: we're moving it back one day to Sunday (the 4th) at 11:00am instead
Apr 2
DIY Robocars via Twitter
@GrantEMoe @circuitlaunch Update: we're doing it on Sunday (4th) at 11:00am instead
Apr 2
Laurie J. Troy liked Jasper Kueppers's profile
Apr 1
DIY Robocars via Twitter
RT @chr1sa: Maybe we should have a mini @DIYRobocars race in our lower school's playground https://t.co/xLFeua1R6X
Mar 29
DIY Robocars via Twitter
If anybody wants to join us for an informal outdoors hack/race we're going to be meeting at the @CircuitLaunch park… https://twitter.com/i/web/status/1375907409223249923
Mar 27
DIY Robocars via Twitter
RT @SmallpixelCar: Ready to reopen, innovation has to continue. Inside/outside, LiDAR/GPS, race/delivery https://t.co/jpmvttoHEd
Mar 26
DIY Drones via Twitter
RT @DAVGtech: By far best race yet! Congratulations to the winner @Heavy02011 🥇🏆🍾👏👏👏 @diyrobocars @donkey_car @NVIDIAEmbedded https://t.co/…
Mar 20
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #8 - #ParkingLotNerds ⁦@DAVGtech⁩ ⁦@DWalmroth⁩ ⁦@OttawaAVGroup⁩ - join us tomorrow h…
Mar 20
DIY Drones via Twitter
RT @mrpollo: 11 years ago, the pxIMU was announced to the world on @DIYDrones, and it changed the life of many (mine included). The followi…
Mar 18
DIY Drones via Twitter
RT @ishcahealth: This is awesome! ☘️ @DroneDJ @DIYDrones @WorkerDrones @DroneMedia_UK @dublinaviation https://twitter.com/media_ireland/status/1372077878536462336
Mar 18
More…